Exercising machine



June 2, 1942. H. J. MARLOWE EXERCISING MACHINE Original Filed Dec. 6.1935 4 Sheets-Sheet l June 2, 1942.

H. J. MARLowE Re. 22,105 EXERCISING MACHINE Original Filed Dec. 6, 19354 Sheets-Sheet 2 INVENToR 11a/10b J/Var/owe ATTORN EYS June 2, 1942. H.J. MARLowE EXERCISING MACHINE Original Filed Dec. 6, 1955 4 Sheets-Sheet3 INVENTOR 17a/'0h' JJM/lame BY ATTCRNEY5 4 sheets-sheet 4 H. J. MARLOWEEXERCISING MACHINE Original Filed Dec. 6, 1935 June 2, 1942.

ii mg owe INVEN-ron ,ll'amldJ/Var ATTORNEYS .a :Qn N. .ma

Reissued June 2, 1942 EXERCISING MACHINE Harold J. Marlowe, New

Exercycle Corporation,

Ware

Original No. 2,107,449,

December Serial No. 53,124,

tion for reissue March 34 Claims.

My present invention is concerned with exercising machines and has amongits objects to provide a simple and rugged apparatus, which serveseffectively to exercise those muscles commonly used in bicycle riding,and in horseback riding, as well as those used in operating a rowingmachine.

An object of the invention is to provide a machine of the above type, inwhich the user does not exert affirmative effort, butl on the contrary,muscular movement is mechanically imposed upon him regardless of whetherhe tries to relax or to resist such movement.

Another object is to provide a machine of the above type, capable ofbeing operated from a fractional horsepower motor, which will yet affordexercise adequate for even powerful individuals.

Another object is to provide a device of the above type, by which thecomplex rhythmic relal' tive movements of the legs, arms and body of theuser are effected, with the use of conventional transmission gearing andlinkage not subject to jamming or noisy operation.

Another object is to provide a machine of the above type which admits ofready adjustment with respect to the height, weight and age of the user.

Another object is to provide a machine of the above type, which inoperation will not cause any injury to the floor, rug or other supporton which it may stand when used in any ordinary room of a dwelling.

The invention involves a support frame or chassis carrying a pedal crankmember, a seat and a handle bar, and an electric motor operating thepedal through a gear reduction, and preferably also connected by linkageto said seat and handle member for moving the same in a cycle by whichis brought about the desired co ordinated exercising movement of theuser.

In a preferred embodiment the chassis carries a transmission box drivenfrom thermotor and driving the pedal crank shaft, preferably through aworm drive, and also driving the seat and handle supportsE preferably bymeans of a connecting rod, protruding from the transmission box andoperated from a crank or other eccentric member therein which is drivenfrom the pedal crank shaft. Y

Preferably a generally horizontal control bar pvoted to the frame isoperated from the connecting rod, the movement of said control bar beingresisted by a coil spring connecting the free end of said bar to theframe and the tension York, N. Y., assigner to a corporation ofDeladated February 8, 1938,

6, 1935. Applica- 26, 1942, Serial No.

(Cl. 12S-33) Cil of which is controlled by adjustably positioning theupper spring carriage thereof along said control bar. The seat andhandle bar are mounted on corresponding support bars, one of which,preferably the seat carrying bar, is pvoted to the frame, the other,preferably the handle bar, pivoted at one end thereof, to the f1rst ofsaid bars, and between its ends to said control bar.

In the accompanying drawings, in which are shown one or more of variouspossible embodiments of the several features of the invention,

Fig. 1 is a plan view of the machine,

Fig. 2 is a side elevation thereof showing the operation thereof,

Fig. 3 is a front elevation of the machine,

Fig. 4 is a sectional view on an enlarged scale with parts broken awaytaken along the line 4 4 0f Fig. l,

Fig. 5 is a view in transverse cross-section through the transmissionbox taken on line 5-5 of Fig. 4,

Fig. 6 is a view similar to Fig. 4 with parts broken away showing analternative embodiment of transmission box,

Fig. '7 is a sectional view Fig. 6,

Fig. 8 is a detail sectional view taken 8-8 of Fig. 6,

Fig. 9 is a plan View showing the spring tension adjustment scale, and

Fig. 10 is a detail sectional view taken Ill-III of Fig. 4.

Referring now to the drawings, the device comprises a chassis or framelpreferably made of metal tube stock, which may include a pair oftransverse and inwardly inclined U-shaped foot members Il the legs ofeach of which are connected at their ends by a transverse brace I2. Thefoot members are connected by a pair of longitudinal rods I3 forming thechassis. Each of rods I3 is reversely bent at its forward end to form atrapezoidal side frame I5 with a horizontal upper base IB the downturnedextremity of each rod being Welded at I1 to the longitudinal portion I3thereof. Longitudinal brace rods I3 are connected at their ends to therespective cross braces I2 and their intermediate portion extendshorizontally at I9 under, along and in contact with the chassis rods I3to which they may also be welded.

Upon the chassis and between the side frame pieces I5 is mounted thetransmission box B, hereinafter to be described. It may be attached byscrew |02 threaded into boss |03 and exerting pressure through clampplate IM against brace taken on line 1-1 of on line on line rods I9.Through the lateral walls of box B protrudes the pedal crank shaft 20mounting the conventional bicycle pedal cranks 2| and pedals 22. Throughthe upper part of the transmission box protrudes a connecting rod 23pivoted at its upper end 24 to an intermediate portion of the controlbar 25 which in turn is pivotally mounted at 26 between the horizontalparts I6 of the side frame, and effects the relative movement of theseat and handle now to be described. To this end the seat and handlemembers are preferably mounted upon corresponding bars pivotallyinterconnected, the assemblage thereof being pivotally mounted upon thesupport frame. In the specific embodiment shown the seat 21 which may bea more or less conventional motorcycle seat, and is preferably of metal,is mounted by its central rin 28 to the upper end of a bar 29, thelower' end of which is pivoted at 30 preferably to a n 3| cast on thetransmission box B.

The handle bar 32, which may be similar to that of a motorcycle, iscentrally clamped in a corresponding collar 33 at the upper end of asupporting bar 34 therefor, the lower end of which bar is pivoted at 35to the seat supporting bar 29 and which is pivoted between its ends asat 36 to the extremity of the control bar 25. Preferably, the collar 33has the usual clamping screw 31 thereon for adjustably positioning thehandle grips 32' in accordance with the arm length of the user.

If the seat 21 were rigidly mounted upon its support bar 29 it wouldtilt with the movement of said bar in pivoting about pin 30. Means istherefore provided to maintain the seat at a comfortable and safe anglethroughout the motion thereof from between its extreme forward and itsextreme rearward position. A parallel motion linkage is, therefore,provided to assure substantially a translational movement of said seatparallel to itself. For this purpose, the mount of the seat 21 on thebar 29 is by means of a pivot screw 38 and a parallel motion link 39 ispivoted at its upper end to the front of the seat at 45, and itsopposite end, (formed as a clevis 4| straddling the bar 34) ispreferably pivotally mounted on pins 42 at corresponding ears 43 weldedto the side frame |5. In the embodiment shown in Fig. 2 of the drawings,the lower ends of the bar 29 and link 39 are pvoted at fixed bearings 3Uand 42 respectively, the line connecting which is at a considerableangle to that connecting the upper and movable ends of said bar and linkshown respectively at 38 and 4|). For true parallel motion said lineswould have to be parallel. The seat in the embodiment shown does notmove strictly parallel to itself, but in the rearmost position, it tiltsdownward slightly with respect to the position assumed at the forwardpart of its movement. The term parallel motion linkage as used in theclaims, is intended to embrace within its scope the showing in thedrawings in which the seat is controlled by link 39 to pivot about itspivotal mount 38 to be maintained in substantially but not necessarilyin strictly parallel relation.

To resist the pivotal motion imparted by the connecting rod 23 to thecontrol bar 25 a heavy coil spring 44 is provided, pivotally anchored tothe frame at one end and to the control b-ar at the other. The framemount may comprise a screw 41 with a spherical head 46 housed in acorresponding socket 48 in a foot 45 cast with the box B. The shank ofscrew 41 is screwed through the button 49 which is gripped by the lowerturns of the spring 44. The upper end of the spring has a correspondingbutton 50 pivoted at 5I to a carriage 52 formed as a. sleeve whichencircles the control bar 25. A screw 53 threaded through said carriage52 is rotatably mounted at its ends in corresponding ears 54 on thecontrol bar. By means of a handle 55 at the forward end, the screw 53 isturned and the carriage 52 thereby caused to be moved forward orbackward to the desired position, for adjusting the tension of thespring 44. Preferably, as best shown in Fig. 9, a slotted scale plate 56is attached at 58 upon corresponding studs 51 on top of the control bar25. A corresponding pointer 58' affixed on a stud 59 on top of thecarriage 52 travels in longitudinal slot 60 in the plate, to indicatethe setting, preferably in terms of the weight of the user.

While, of course, it would be possible, to arrange the partssubstantially as in my copending application, Serial No. 733,546 of July3, 1934, issued February 8, 1938, as Patent No. 2,107,447, to operatethe pedals by foot power, which in turn causes the movement of the seatand handle bars, it is preferred, according to the present invention, tooperate the apparatus by a mechanical power drive. For this purpose, afractional horse power electrical motor 6| is mounted, preferably at therear end of the chassis and is connected by means of a drive shaft 62 tothe transmission box.

While drive may be effected through any desired clutch, the drive shaft62 is illustratively shown as a hollow shaft operating within a fixedtube 8|, and having a squared extremity 62 telescoped over thecorrespondingly flattened protruding extremity 63 of cross shaft 64bearing in the front and back walls 65 and 66 of the transmission box B.A worm 61 upon said shaft 64 meshes with a worm wheel 68 keyed to thepedal crankshaft 20, which bears in the lateral walls 69 and 1U of thetransmission box B.

The pedal crankshaft 20 also serves to deliver power to the connectingrod 23, by which the seat and handle mounting bars are operated.Desirably the cycle of movement of the handle bar or seat is at afrequency having a definite relation to the frequency, that is, therevolutions per minute of the pedal crank. To this end, power istransmitted from the worm wheel shaft to perform the complete cycle ofpedal operation, at faster rate but at a definite ratio to the cycle ofmotion of the handle supporting bar, or of the seat supporting bar. Inthe specific embodiment shown, the pedal bars are mounted directly uponthe worm wheel shaft, while a gear reduction is interposed between saidworm wheel shaft and the drive for the seat or handle bar.

For this purpose a gear 1| keyed to shaft 2|) meshes with an idle gear12 on stub shaft 13 in the transmission box, which, in turn, meshes withdrive gear 14 on transmission crankshaft 15 near the upper part of thebox. The crank 16 of shaft 15 affords the bearing for the lower end ofthe connecting rod 23. That rod preferably protrudes from the upper wall11 of the box through a stuffing box 18 resiliently tightened by a coilspring 19 about the protruding end of the connecting rod 23 and reactingat its upper end, against flange 8U.

The use of the apparatus will be obvious from the above description. Itmay be briefly noted that after the user mounts the apparatus, as hewould a motorcycle, and places his feet on the pedals, he sets theelectric motor 6| into action by throwing the switch (not shown) whichmay be disposed at any convenient accessible place. The worm gearreduction 61-68 is such as to cause driving of the pedal crankshaft 29at the rate of about 80 revolutions per minute. At the same timetransmission crank 16 will move at desired speed, determined by theratio of gears 1I and 14, preferably at approximately thirty revo-'lutions per minute. In this operation, the connecting rod 23, throughthe control bar 25 will exert alternate push and pull upon bar 34 atpivot 36. As the rear of control bar 25 moves downward about pivot 26,the forward end moves correspondingly upward and stresses the spring 44.In the downward pivoting of the rear of the control bar, the handlesupport bar 34 is lowered therewith, said bar 34 correspondinglydepressing the seat support bar 29 about its pivot 39, by virtue of thethrust delivered through pivot 35. The portion of the control bar 25between the pivots 26 and 36, forms with the portion of the handlesupport bar 34 between the pivots 35 and 36 a toggle, so that saidpivots 35 and 36 moving through distinct paths cause said bar 34 to tiltforward about pivot 35 and about the control bar pivot 36. Of coursewhat is designated as the toggle, does not become completely set, for,even in the extreme position, the link 25 and the lower part of bar 34form a large obtuse angle relative to each other, but never reachstraight angle or toggle locking position. The extreme position of thedownward and rearward movement of seat 21 and the concurrent downwardand forward movement of handle bar 32 (shown in Fig. 2 in dotted lines)is reached when the transmission crank 16 has reached lower dead center.As the crank 16 passes dead center position, the stressed spring 44 aidsthe motor in the return movement, in which the seat 21 and the handlebar 32 perform the reverse of the motion previously set forth, and reachtheir position of closest approach when crank 16 reaches upper deadcenter.

Thus in operation, the user, without exerting any affirmative eort, isconstrained to perform repeated cycles of vigorous muscular movements.His legs are caused to perform a pedaling motion. At the same time histrunk and arms are caused alternately to be bent over and stretched bythe rearward movement of the seat and the concurrent forward movement ofthe handle bars and then to be straightened and relaxed by the returnmovement of the seat and handle bar.

As appears from the drawings, the simultaneous backward movement of theseat and forward movement of the handle bar with respect to the fixedposition of the pedal crank shaft 26 helps to maintain the body of theuser in balanced position.

In the pivoting movement of seat mounting bar 29. the seat 21 movesthrough a substantially1 translational path, at no time tiltingexcessively from horizontal, since the parallel motion link 39compensates for the excessive tilting otherwise incurred, as above setforth.

The aliernative embodiment of Figs. 6 to 8 is generally similar to thatdescribed, except that it includes selective gear reduction for greaterflexibility of operation. in accordance with the physical condition ofthe user. Corresponding parts bear the same reference numerals, primed.In general, the transmission box B resembles that of the otherembodiments, but it differs in that the worm 61' is on a couniershaft 90parallel to the motor driven shaft 64 and propelled at either of twoalternative power speed reductions depending on the setting of a gearshift. For this purpose, a pair of alternative driving gears 9| and 92are keyed on shaft 64 and a pair of alternative driven gears 93 and 94are loosely mounted on countershaft 90. The gear transmission 92, 94,affords a greater reduction than the gear transmission 9|. 93, becausethe drive gear 92 of the former is smaller and the driven gear 94 islarger than the corresponding elements of the alternative drive. Drivengears 93 and 94 have clutch teeth 95, alternatively engaged bycorespondingly conformed teeth on clutch sleeve 96 keyed to countershaft90 between gears 93 and 94, and positioned by means of a yoke 91straddling the same, the shank 98 of which yoke is mounted on the end ofan arm 99 which may be turned by means of an exposed handle |00. A coilspring |61 resiliently retains the clutch SE in one of the other of thetwo positions as desired. The transmission box of Figs. 6 to 8 isinterchangeable with that of Figs. 3 and 4, and admits of either a fastoperation of the pedal say at R. P. M. cr a lower operation say at 40 R.P, M., in each of which the motor 6I operates on full voltage.

It will thus be seen that there is herein described apparatus in whichthe several features of this invention are embodied, and which apparatusin its action attains the various objects of the invention and is wellsuited to meet the requirements of practical use.

As many changes could be made in the above construction, and manyapparently Widely diierent embodiments of this invention could be madewithout departing from the scope thereof, it is intended that all mattercontained in the above description or shown in the accompanying drawingsshall be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. An exercising machine, comprising a support base, a handle member, aseat member, and pedal cranks on said suport, an electric motor having aspeed reducing connection for propelling said cranks and a speedreducing driving linkage between said motor, said handle member and saidseat member, to move the latter two members alternately toward and awayfrom each other.

2. An exercising machine comprising a support base, pedal cranksthereon, a seat member having a support bar, a handle member having asupport bar, said support bars being pivotally interconnected, theassemblage thereof being pivotally mounted upon said support frame, anelectric motor, a speed reducing transmission between said motor andsaid pedal cranks and a speed reducing driving linkage between saidmotor and one of said supporting bars to cause said bars to move theseat and handle member alternately toward and away from each other.

3. An exercising machine comprising a support base, a motor, a wormdriven by said motor, a worm wheel meshing therewith and having a shaft,pedal cranks on said support base driven from said shaft, a seat memberhaving a support bar, a handle member having a support bar. said supportbars being pivotally interconnected, the assemblage thereof beingpivotally mounted upon said support frame, said bars being interrelatedfor movement of the seat and handle member in opposed directions uponimpulse exerted upon one of said bars and means driven from said wormwheel shaft for exerting alternate push and pull upon one of said bars.

4. The combination recited in claim 3 in which the transmission betweenthe worm wheel shaft and the bar operating means causes the latter tooperate at a lesser frequency than the frequency or revolutions perminute of the pedals.

5. An exercising machine, comprising a support base, a seal member, along bar aflixed thereunder at one end thereof and pivoted at itsopposite end to said frame, a second bar pivoted to said first bar andextending generally upward therefrom and having a handle member aflixedto the upper end thereof, a generally horizontal control bar pivotedbetween its ends to satd frame, and pivoted near its forward end to saidhandle carrying bar, pedal cranks positioned laterally of said frame,and a transmission between said cranks and said control bar, serving inoperation alternately to cause said seat and said handle members to movetoward and away from each other.

6. An exercising machine comprising a support base, a seat member havingthe upper end of a support bar attached thereunder, the oppositie end ofsaid bar having a fixed pivotal support with respect to said base, asecond support bar pivoted to said seat support bar near one end thereofand carrying a handle bar at the upper end thereof, a control barpivotally mounted on said base and secured near its rear end to one ofsaid support bars, a pedal crank and a transmission between the latterand said control bar.

'7. An exercising machine comprising a support base, having upstandingparallel frame pieces, a generally horizontal control bar pivotedbetween said frame pieces, a pedal movement having a transmission tosaid control bar, a seatl a support bar secured thereunder at one endthereof and pivoted to said frame at the opposite end thereof, a handlebar, and a support bar for the latter pivoted at one end to said seatsupport bar and pivoted between its ends to said control bar.

8. An exercising machine comprising a support base having upstandingparallel frame pieces, a generally horizontal control bar pivotedbetween said frame pieces, a pedal movement having a transmission tosaid control bar, a seat, a support bar secured thereunder at one endand pivoted to said frame at the opposite end. a handle bar, a supportbar for the latter pivoted at one end to said seat support bar andpivoted between its ends to said control bar, said seat having a pivotalmount on the seat support bar, and a parallel motion link pivoted at oneend to the forward part of said seat and at the opposite end to saidframe, the length of said link being approximately the same as thedistance between the pivoted end of the handle support bar and the pivotmount of the seat.

9. An exercising machine including a pair of parallel lateral framemembers, a control bar pivoted between said members, a pedal crankmember having a, transmission connected to said control bar, formovement of the latter about its pivot, a seat member and a handle barmember, support bars respectively mounting the same, one of said barshaving a fixed pivotal support on said frame and the other being pivotedto said control bar, the lower end of one of said support bars beingpivoted to an intermediate portion of the other of said support bars.

10. An exercising machine including a pair of parallel lateral framemembers, a control bar pivoted between said members, a pedal crankmember having a transmission connected to said control bar for movementof the latter about its pivot, a seat member and a handle bar member,support bars respectively mounting the same, one of said bars beingpivoted to said frame and the other pivoted to said control bar, thelower end of one of said bars pivoted to an intermediate portion of theother of said bars, said seat having a pivotal mount on the support barthereof, and a parallel motion link for said seat, pivoted at one end tothe front of said seat and at the other end to said frame.

1l. An exercising machine including a pair of parallel lateral framemembers, a control bar pivoted between said members, a pedal crankmember having a transmission connected to said control bar for movementof the latter about its pivot, a seat member and a handle bar member,support bars respectively mounting the same; one of said bars beingpivoted to said frame and the other pivoted to said control bar, thelower end of one of said bars pivoted to an intermediate portion of theother of said bars, said seat having a pivotal mount on the support barthereof and a parallel motion link pivoted at its rear end to the frontof said seat and having a clevis at the other end straddling the handlesupport bar and pivoted at its extremities to said frame.

12. An exercising machine comprising a support frame, including a pairof parallel lateral members, a generally horizontal control barpivotally mounted between said lateral members, an adjustable resistancecoil spring attached at its lower end to said frame, and attached at itsupper end to the forward part of said control bar, means for adjustingthe position of the upper end of said spring lengthwise of said controlbar to determine the tension thereof, a pedal crank member, linkageconnecting the same to said control bar to effect a pivoting movement ofthe latter, a seat member and a handle bar member and linkage connectingsaid control bar to said respective members to effect relative movementthereof during the stressing of said resistance spring and reverserelative movement thereof during the return of said spring.

13. An exercising machine comprising a support base, a seat, a handlemember, a bar pivoted to the frame and mounting one of said members atits upper end, a bar pivoted at one end to said first bar, and mountingthe other of said members at its upper end, a control bar pivoted tosaid frame and having a pivotal connection at one end to said secondbar, a coil resistance spring mounted at its lower end to said frame,and having a carriage aixed at its upper end to the forward end of saidcontrol bar, and a screw and nut connection for shifting said springcarriage longitudinally of said control bar to adjusted positionthereof, said carriage having an indicator and a scale on the controlbar for registering the setting in accordance with the weight of theuser.

14. An exercising machine including a support frame, a pedal crankmember, a seat, a support bar for said Seat pivoted at its upper endwith respect to the base of said seat, and pivoted at its lower end tosaid frame, a linkage for moving said support bar about the pivot of thelatter in the movement of the pedal crank member, and means formaintaining the seat in horizontal position throughout by movement aboutthe pivot support, said means comprising a parallel motion linkage.

15. An exercising machine, comprising a support base, a movable seat anda movable handle bar supported on said base, a transmission box on saidbase, a pedal crank member carried thereby. an electric motor on saidbase, a speed reducing transmission in said box for delivering torquefrom said motor to said pedal crank, said box having a further speedreduction transmission to said seat and said handle bar to cause thelatter alternately to move toward and away from each other.

16. An exercising machine, comprising a support base, a movable seat,and a movable handle bar supported on said base, a transmission box onsaid base, a pedal crank member carried thereby, an electric motor onsaid base, a speed reducing transmission in said box for deliveringtorque from said motor to said pedal crank, said box having a furtherspeed reduction transmission to said seat and said handle bar to causethe latter to move relative to each other, said linkage including apivoted control bar operated from said transmission box and governingthe movement of both said seat and said handle bar, and an adjustableresistance spring connecting an end of said control bar to said supportbase.

17. An exercising machine comprising a support frame, pedal cranksthereon, an electric motor on said frame, a speed reduction including aworm and a worm wheel meshing therewith for transmitting torque fromsaid motor to said pedal cranks, a seat, a support therefor, a handlemember, a support bar therefor pivotally mounted to said frame and speedreducing means between said worm wheel and said handle support bar to Apivot the latter alternately toward and away from said seat.

18. An exercising machine comprising a support frame, an electric motorthereon, a gear transmission box driven therefrom including a worm, aworm wheel meshing therewith, and having a shalt, pedal cranks mountedon the extremities of said shaft, said transmission box having a spurgear reduction therein, a seat, a support therefor, a handle member, asupport bar therefor pivotally mounted to said frame, a crank drivenfrom said spur gear transmission and means including a connecting rodbetween said crank and said handle support bar for causing the latteralternately to approach and recede from the seat.

19. An exercising machine comprising a support frame, a seat, a handlemember, pedal crank members, an electric motor and a transmission boxcarried on said frame, said transmission box having a worm driveconnection between said motor and said pedal crank members for powerdrive of the latter, a bar pivotally mounted near its lower end withrespect to said frame, said seat being carried upon the upper end ofsaid bar, and means transmitting power from said transmission box tocause the pivoted seat carrying bar alternately to approach and recedewith respect to the handle member during operation.

20. An exercising machine comprising a support frame, a seat, a handlebar, pedal crank members, an electric motor and a transmission boxcarried on said frame, said transmission box having a worm driveconnection between said motor and said pedal crank members for powerdrive of the latter, pivotally interconnected support bars mounting theseat and the handle bar upon the respective upper ends thereof, theassemblage of said support bars being pivotally mounted upon saidsupport frame and means transmitting power from said transmission box tooperate both of said support bars in alternate relative movements ofapproach and recession.

21. An exercising machine comprising a support base, having a pair ofsimilar lateral frame members, a transmission box mounted on said base,a shaft transversely therethrough having crank pedals on the endsthereof, a generally horizontal control bar pivoted between said framemembers, a crank rod extending upward from said transmission box andpivoted to said control bar, an adjustable coil spring mounted at itslower end on said frame and a carriage for the upper end, thereofslidably adjustable on said control bar for setting the spring tension,a seat member and a handle bar member, bars supporting the respectivemembers, one of said bars being pivoted at one end to the frame, theother of said bars pivoted at one end to said first bar and pivotedbetween its ends to said control bar.

22. An exercising machine comprising a support base having a pair ofsimilar lateral members, a transmission box mounted on said base, ashaft transversely therethrough having pedal cranks on the ends thereof,a generally horizontal control bar pivoted between said lateral members,a connecting rod extending upward from said transmission box and pivotedto said control bar, an adjustable coil spring affixed at one end tosaid frame and having a carriage at the opposite end slidably adjustableon said control bar for setting the spring tension, a seat member and ahandle bar member, bars pivotally supporting the respective members, oneof said bars being pivoted at one end to the frame, the other of saidbars pivoted at one end to said rst bar, and pivoted between its ends tosaid control bar, and an electric motor mounted on said support base,having a worm drive connection within said transmission box to saidpedal shaft and having a reduction gear transmission within saidtransmission box to said connecting rod.

23. In an exercising machine, the combination of a transmission box,having a drive shaft longitudinally therethrough, and a pedal crankshaft transversely therethrough, a worm drive connection between saiddrive shaft and said pedal crankshaft, a transmission for operating aseat and an operating handle including a transmission crankshaft withinsaid box having a connecting rod thereon, protruding from the box, and areduction gearing transmission within said box from said pedalcrankshaft to said transmission crankshaft.

24. An exercising machine comprising a frame of tube stock, includingtransverse floor rests, longitudinal side rests, tube stock lateralmembers rising from said base members, and forming a platform, anelectric motor mounted thereon, a. transmission box mounted thereonbetween said lateral members, a drive shaft from said motor to saidtransmission box, said lateral tube stock members extending horizontallyat the upper ends thereof, a control bar pivoted between said horizontalmembers, a connecting rod extending upward from said transmission boxand pivoted to said control bar, a seat membera handle bar member,support bars for said members, one of said support bars pivoted at oneend to the other' support bar and intermediate its ends to said controlbar and a resistance spring connected at one end to said frame and atthe other to the extremity of said control bar.

25. An exercising machine comprising a frame of tube stock, includingtransverse oor rests,

longitudinal side rests, tube stock lateral members rising from saidbase members, and forming a platform, an electric motor mounted thereon,a transmission box mounted thereon between said lateral members, a driveshaft from said motor to said transmission box, said lateral tube stockmembers extending horizontally at the upper ends thereof, a control barpivoted between said horizontal members, a connecting rod extendingupward from said transmission box and pivoted to said control bar, aseat member, a support bar therefor pivoted at its lower end to saidtransmission box, a handle bar member, a support bar therefor pivoted atits lower end to said seat support bar, and pivoted between its ends tosaid control bar, and a resistance coil spring having a carriage pivotedat its lower end to said frame and a carriage adjustably slidable at itsupper end along said control bar.

26. An exercising machine comprising a frame of tube stock, includingtransverse floor rests, longitudinal chassis frame bars and tube stocklateral members rising from said chassis bars and forming a platform, anelectric motor mounted on said chassis bars, a transmission box mountedon said chassis bars between said lateral members, a drive shaft fromsaid motor to said transmission box, said lateral members extendinghorizontally at the upper ends thereof, a control bar pivoted betweensaid horizontal members, a connecting rod extending upward from saidtransmission box and pivoted to said control bar, a seat member, asupport bar therefor pivoted at its lower end to said transmission box,a handle bar, a support bar therefor pivoted at its lower end to saidseat support bar, and pivoted between its ends to said control bar, anda reaction coil spring having a carriage pivoted at its lower end tosaid frame and a carriage adjustably slidable at its upper end alongsaid control bar, said seat being pivoted near its back to the upper endof said seat carrying bar, and a parallel motion link pivoted at one endto said frame and at the other to the forward part of said seat.

27. An exercising machine comprising a frame structure, a seat, asupport bar therefor pivotally mounted at its lower end upon said frame,a handle member, a support bar therefor and means interlinking saidsupport bars with respect to each other and with respect to said framestructure for moving said seat along a curved path in a generallyhorizontal direction While maintaining said seat in substantiallyhorizontal position throughout and for simultaneously effecting amovement of said handle member in a generally horizontal directionopposed to that of said seat.

28. An exercising machine including a frame structure, a seat, a supportbar therefor pivoted to said structure at the lower end thereof, ahandle member, a support bar therefor interlinked with said seat bar tocause said members to move in curved paths in generally horizontaldirection and in opposition to each other, and parallel motion linkagefor maintaining said seat at substantially constant inclination withrespect to the horizontal during its movement.

29. An exercising machine including a frame structure, a bar having afixed pivotal support with respect to said structure, a second barpivotally connected to said first bar, a control member having a fixedpivotal support with respect to said structure and pivotally connectedto said latter barl whereby the movement of said bars is constrained ingenerally opposed directions, a seat fixed to one of said bars againstsliding movement, and a handle supported on the other bar.

30. An exercising machine including a frame structure, a bar having afixed pivotal support with respect to said structure, a second barpivotally connected to said first bar, a control member having a fixedpivotal support with respect to said latter bar whereby the movement ofsaid bars is constrained in generally opposed directions, a seat fixedto one of said bars against sliding movement, a handle supported on theother bar, and means for resisting the movement of said bars during aportion of their operating cycle.

3l. An exercising machine including a frame structure, a bar having afixed pivotal support with respect to said structure, a second barpivotally connected to said first bar, a control member having a fixedpivotal support with respect to said latter bar whereby the movement ofsaid bars is constrained in generally opposed direction, a seat fixed toone of said bars against sliding movement, a handle supported on theother bar, and spring means for resisting the movement of said barsduring a portion of their operating cycle, and reacting to aid return ofsaid bars during the remainder of said cycle.

32. An exercising machine including a frame structure, a first barhaving a fixed pivotal support with respect to said structure, a secondbar pivotally connected to said first bar, a control member having a xedpivotal support with respect to said frame structure, pivotallyconnected to said latter bar and forming with part of said latter bar atoggle for constraining the movement of said bars in opposed direction,a seat supported on one of said bars against sliding movement, and ahandle support on the other bar.

33. An exercising machine including a frame structure, a seat supportingbar, a handle supporting bar, one of said bars having a fixed pivotalsupport with respect to said frame structure and pivotally connected tothe other supporting bar, a control bar having intermediate the endsthereof a fixed pivotal support with respect to said frame structure,pivotally connected at one end to said latter supporting bar and formingwith part of said latter supporting bar a toggle for constraining themovement of said supporting bars in opposed directions, and a springfixed at one end to said frame structure and pivotally connected at itsother end to the other end of said control bar for resisting themovement of said supporting bars during a portion of their operatingcycle and reacting to aid the return of said bars during the remainderof said cycle.

34. An exercising machine including a frame structure, a seat supportingbar, a handle supporting bar, one of said bars having a fixed pivotalsupport with respect to said frame structure and pivotally connected tothe other supporting bar, a control member having a fixed pivotalsupport with respect to said frame structure, pivotally connected tosaid latter supporting bar above the pivotal connection between saidsupporting bars and forming with part of said latter supporting barbetween its pivotal connections a toggle for constraining the movementof said supporting bars in oppOsed directions.

HAROLD J. MARLOWE.

